THI^®F-515 Bearing quenching oil

Brand: Thinking Finechem
Model number：THI^®F-515
Appearance: light yellow oil
Flash point: 160-240℃
package size: 170 KG / barrel
For sample and more info, please contact us (Email: info@thinkingchem.com)

①Rapid steam film stage, which can effectively reduce the change of ovality during the quenching process of the bearing ring.
②The quenchant has good thermal stability, long service life and long-term stable cooling characteristics.
③The product has little smell, smoke and carbon deposit. The surface of the workpiece is easy to clean and has fine luster after quenching.
④High-quality base oil is used to make the quenching oil, the wastage is extremely low, the amount of carry-out is small, and the cost of use is low.

Indicator		Technical requirement			Test method
Indicator		A	B	C	Test method
运Kinematic viscosity, 40℃，mm2/s≯		30	45	70	GB/T265
Flash point (open), ℃ ≮		180	190	210	GB/T3536
Water content, %≯		None	None	None	GB/T260
Pour point, ℃ ≯		-9	-9	-9	GB/T3535
Corrosion (copper, 100℃,3h), degree ≯		1	1	1	GB/T5096
Thermal oxidation stability	Viscosity ratio ≯	1.25	1.25	1.25	SH/T0219
Thermal oxidation stability	Carbon Residue，% ≯	1.2	1.2	1.2	SH/T0219
Cooling performance (liquid temperature 60℃, not stirred)	Characteristic temperature ℃ ≮	67O	67O	67O	ISO/D09950
Cooling performance (liquid temperature 60℃, not stirred)	Highest cooling speed ℃s ≮	100	90	80	ISO/D09950

THIF-515A bearing quenching oil is suitable for the quenching of medium and large bearing rings and rolling elements such as GCr15 and GCr15SiMn.
THIF-515B bearing quenching oil is suitable for the quenching of medium-sized bearing rings and rollers.
THIF-515C bearing quenching oil is suitable for the quenching of small bearing rings and small rollers.

515A bearing quenching oil applicable temperature: 40℃-80℃
515B bearing quenching oil applicable temperature: 60℃-90℃
515C bearing quenching oil applicable temperature: 70℃-100℃

①Quenching tank: The sludge, oxide scale and carbon black should be removed from the quenching tank before use, and there must be no water in the quenching tank.
②Moisture control: Be careful not to mix in moisture. If more than 400PPM of moisture is mixed in during group quenching, it may cause uneven quenching hardness and reduce the service life of quenching oil. If there is moisture, dehydrate first.
③Control of oil temperature: use instruments to monitor and control the oil temperature to keep the oil temperature within the recommended temperature range. The quenching tank should have cooling and heating devices. When choosing a cooler, it is better to choose an air cooler. If you choose a plate heat exchanger, you must ensure that the heat exchanger does not leak (note that copper or copper alloys have an aging effect on the quenching oil and cannot be used as a radiator). On the premise of meeting the quenching requirements, try to choose a lower oil temperature to extend the service life of the quenching oil.
④String control: Propeller string is the best, followed by circulating oil pump, preferably not using air pump to stir. Set appropriate stirring force according to the material, shape and size of the workpiece.
⑤Regular cleaning of impurities: the scrap iron, oxide scale, oil sludge, oil residue and other impurities in the oil tank and circulation system should be regularly precipitated, filtered and cleaned to keep the quenching oil clean.
⑥Notice: thick and large workpieces must be quickly submerged in quenching oil. If the workpiece is half in oil and half in the air, it is likely to ignite the quenching oil and cause uneven hardening of the workpiece.
⑦ detection: regularly inspect the viscosity, flash point, water content and cooling characteristics of the quenching oil, and timely replenish the quenching oil in the oil tank.